package jdbc;
/**
 * 执行DML语句--UPDATE
 */
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.SQLException;
import java.sql.Statement;

public class JDBCDemo3 {
    public static void main(String[] args) throws Exception {
        Class.forName("com.mysql.cj.jdbc.Driver");
        Connection conn= DriverManager.getConnection(
                "jdbc:mysql://localhost:3306/tedu?characterEncoding=utf8&useSSL=false&serverTimezone=Asia/Shanghai&rewriteBatchedStatements=true",
                "root",
                "root");
        Statement state = conn.createStatement();
        String sql = "UPDATE userinfo SET password=666 WHERE username='阿绿';";
        int num=state.executeUpdate(sql);
        if(num>0){
            System.out.println("修改成功！");
        }else{
            System.out.println("修改失败！");
        }
        conn.close();
    }
}
